Mystery Powders

The Color RED represents which pH?

• Acid
• Base

A solution with a pH of 7 is________

• increasing
• neutral
• decreasing
• apple juice

 Which of the following is an acid?

• shampoo
• baking soda
• orange juice
• water

Tags

NGSS.HS-PS1-1

Bleach is a strong base, what is the pH level of bleach?

• 13
• 14
• 1
• 2

Which food is the most acidic?

• bananas
• lemon juice
• orange juice

Tags

NGSS.MS-PS1-2

Bubbles and fizzing can be seen instantly when baking soda is mixed with vinegar. The bubbles are evidence of which of the following?

• A gas is formed when baking soda and vinegar are mixed.
• Baking soda dissolves in vinegar when they are mixed.
• Vinegar turns into alcohol when it is mixed with baking soda.
• A precipitate is formed when baking soda and vinegar are mixed.

Tags

NGSS.MS-PS1-2

A scientist is trying to test for starches or complex carbohydrates. What solution or indicator should he/she use?

• Benedict's

• Iodine

• Buriet solution

• Sudan solution

I am testing for the presence of starch, which pair would indicate a positive test?

• Benedicts/light blue

• Iodine/brown

• Benedicts/orange

• Iodine/black

What tool is used to measure the volume of a liquid?

• thermometer
• hand lens
• graduated cylinder
• ruler

What tool is used to measure length?

• balance
• ruler
• thermometer
• graduated cylinder

Tags

CCSS.2.MD.A.1